Tree Habitat - Spears and Didion Ranches [ds321]

SDE Feature Class

Open this dataset in BIOS
Download this dataset

Tags
size distribution, Tree density, basal area, California, Didion Ranch, Placer County, Placer Legacy Program, snags, Quadratic Mean Density, Coon Creek, Spears Ranch, Sierra Nevada foothills, tree size, environment, biota, conifers, tree numbers, hardwoods


Summary

These data are intended to represent baseline data for wildlife communities and habitat conditions in these parks. They can be used to assess and monitor the park's ecological viability and sustainability.

Description

These data are the summary statistics calculated for trees and snags from the three 0.05-ha circular plot habitat samples taken in 2005 each at the 15 sample points at Spears and Didion Ranches, Placer County, California. There were three 0.05-ha circular habitat sampling plots at each of the 15 sample points. To be counted, trees had to be > 4" dbh and within the 12.6 m radius plot, while snags had to be > 4" dbh and > 9.8 ft tall and within the plot.

Credits

Use limitations

These data can be used without constraints.

Extent

West -121.208470 East -121.165699
North 38.975549 South 38.959000

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data


Place keywords California, Didion Ranch, Placer County, Coon Creek, Spears Ranch, Sierra Nevada foothills

Theme keywords size distribution, Tree density, basal area, Placer Legacy Program, snags, Quadratic Mean Density, tree size, conifers, tree numbers, hardwoods

Theme keywords environment, biota

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0321_20090702
Publication date 2007-07-18


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Barrett A. Garrison, California Department of Fish and Game, North Central Region
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
For more information on how this sampling component fits into the sampling scheme used on the Spears and Didion Ranch Parks project, see the the following documents: Garrison, B.A. May 2004. "Sierra Nevada Foothill Vegetation-Habitat Study, Habitat Sampling Protocols." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 4pp. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 . "Sierra Nevada Foothill Wildlife, Habitat Sampling Datasheet." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 3pp. including methods. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 .
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0321_20090702
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Date and time 2005-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.208470
* East longitude -121.165699
* North latitude 38.975549
* South latitude 38.959000
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13492865.155500
* East longitude -13488103.963800
* South latitude 4715800.364400
* North latitude 4718169.803700
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Barrett A. Garrison
Organization's name California Department of Fish and Game, North Central Region
Contact's role point of contact


Contact information
Phone
Voice 916 358 2945

Address
e-mail address bgarrison@dfg.ca.gov



Resource Maintenance

Resource maintenance
Update frequency as needed


Resource Constraints

Legal constraints
Limitations of use
Neither the State of California nor the California Department of Fish and Game warrant the correctness or accuracy of the observation data presented in here. They are used at the user's own risk.
Other constraints
Public use.
Constraints
Limitations of use
These data can be used without constraints.

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 7.11.2


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS0321_20090702
* Object type point
* Object count 41



ArcGIS Feature Class Properties
Feature class name DS0321_20090702
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 41
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Completeness omission
Measure description
All vegetation-habitat sampling occurred at 3-circular plots around each of the 15 sample points in the project area. During data compilation the coordinates of the centers of 4-plots (3-2, 11-3, 12-3, and 14-1) were lost and are not shown when this data layer is displayed. However, the attribute data for these points exist in the database and are available for analysis if the exact point is not required (Contact the Data Distributor). See the linked referenced protocols and data sheet in these metadata to evaluate the how the missing coordinates might affect any further analysis of these data




Data quality report - Quantitative attribute accuracy
Measure description
It is assumed that the locations of the survey points are accurate with regard to the actual locations on the ground where the surveys were done. It is assumed that these species were accurately identified, counted, measured, and summarized.




Lineage

Process step
When the process occurred 2009-07-02
Description
Permanently joined extended table contents into shapefile.


Process contact
Individual's name Greg Ewing
Organization's name California Department of Fish and Game
Contact's role processor


Contact information




Geoprocessing history

Process
Date 2011-07-2108:50:25
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:43:10
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name Gordon Gould
Organization's name Biogeographic Data Branch, California Department of Fish and Game
Contact's role distributor


Contact information
Phone
Voice 916 445 5006

Address
e-mail address ggould@dfg.ca.gov



Ordering process
Terms and fees None
Date of availability
Turnaround time
1-2 weeks
Instructions
Contact Distributor



Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov/

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds321.zip

Fields

Details for object DS0321_20090702
* Type Feature Class
* Row count 41


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field LATDD
* Alias LATDD
* Data type Double
* Width 8
* Precision 11
* Scale 7
Field description
Latitude in decimal degrees using NAD83.


Field LONDD
* Alias LONDD
* Data type Double
* Width 8
* Precision 12
* Scale 7
Field description
Longitude in decimal degrees using NAD83.


Field POINT_PLOT
* Alias POINT_PLOT
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
The sample point identification number followed by the vegetation plot identification number.


Field NUM_TREES
* Alias NUM_TREES
* Data type Double
* Width 8
* Precision 16
* Scale 0
Field description
Number of live trees counted in the 0.05-ha circular plot.


Field AVE_DBH_TR
* Alias AVE_DBH_TR
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average diameter at breast height (4.5 ft) of the live trees within the plot.


Field NUM_HT_TRE
* Alias NUM_HT_TRE
* Data type Double
* Width 8
* Precision 15
* Scale 0
Field description
Number of trees sampled in the plot for measurements of tree heights.


Field AVE_HT_TRE
* Alias AVE_HT_TRE
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average height of the trees measured in the plots.


Field QMD_TREE
* Alias QMD_TREE
* Data type String
* Width 13
* Precision 0
* Scale 0
Field description
Average quadratic diameter at breast height (4.5 ft) of the number of trees within the plot. Quadratic diameter is calculated by dividing the (1) square of the sum of the squared diameters of the sample trees by (2) the total number of trees in the sample.


Field TREES_AC
* Alias TREES_AC
* Data type Double
* Width 8
* Precision 13
* Scale 1
Field description
The total number of trees per acre; this is calculated by multiplying the number of trees in the sample by 8.1 to expand the number to the number per acre.


Field TREE_BA_AC
* Alias TREE_BA_AC
* Data type Double
* Width 8
* Precision 15
* Scale 1
Field description
Basal area (BA) (square feet of trees) per acre. This is calculated by summing the total cross-sectional area of the trees in the plot (square feet diameter) by 8.1 to expand the number to an acre.


Field NUM_HWD
* Alias NUM_HWD
* Data type Double
* Width 8
* Precision 12
* Scale 0
Field description
Number of live hardwood trees counted in the 0.05-ha circular plot. The hardwoods are oaks and other trees with leaves.


Field AVE_DBH_HW
* Alias AVE_DBH_HW
* Data type String
* Width 16
* Precision 0
* Scale 0
Field description
Average diameter at breast height (4.5 ft) (inches) of the hardwood trees within the plot.


Field NUM_HT_HWD
* Alias NUM_HT_HWD
* Data type String
* Width 16
* Precision 0
* Scale 0
Field description
Number of hardwood trees sampled in the plot for measurements of tree heights.


Field AVE_HT_HWD
* Alias AVE_HT_HWD
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average height (ft) of the hardwood trees measured in the plots.


Field QMD_HWD
* Alias QMD_HWD
* Data type String
* Width 13
* Precision 0
* Scale 0
Field description
Average quadratic diameter at breast height (4.5 ft) (inches) of the hardwood trees within the plot. Quadratic diameter is calculated by dividing the (1) square root of the sum of the squared diameters of the sample trees by (2) the total number of trees in the sample.


Field HWD_AC
* Alias HWD_AC
* Data type Double
* Width 8
* Precision 10
* Scale 1
Field description
The total number of hardwood trees per acre; this is calculated by multiplying the number of trees in the sample by 8.1 to expand the number to the number per acre.


Field HWD_BA_AC
* Alias HWD_BA_AC
* Data type Double
* Width 8
* Precision 14
* Scale 1
Field description
Basal area (BA) (square feet of trees) per acre of hardwood trees. This is calculated by summing the total cross-sectional area of the trees in the plot (square feet diameter) by 8.1 to expand the number to an acre.


Field NUM_CONIF
* Alias NUM_CONIF
* Data type Double
* Width 8
* Precision 13
* Scale 0
Field description
Number of conifer trees sampled in the plot for measurements of tree heights. Conifers are pines, cedars, and other evergreen trees with needles.


Field AVE_DBH_CO
* Alias AVE_DBH_CO
* Data type String
* Width 14
* Precision 0
* Scale 0
Field description
Average diameter at breast height (4.5 ft) (inches) of the conifer trees within the plot.


Field NUM_HT_CON
* Alias NUM_HT_CON
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Number of conifer trees sampled in the plot for measurements of tree heights.


Field AVE_HT_CON
* Alias AVE_HT_CON
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average height (ft) of the conifer trees measured in the plots


Field QMD_CONIF
* Alias QMD_CONIF
* Data type String
* Width 14
* Precision 0
* Scale 0
Field description
Average quadratic diameter at breast height (4.5 ft) (inches) of the conifer trees within the plot. Quadratic diameter is calculated by dividing the (1) square root of the sum of the squared diameters of the sample trees by (2) the total number of trees in the sample.


Field CONIFER_AC
* Alias CONIFER_AC
* Data type Double
* Width 8
* Precision 15
* Scale 1
Field description
The total number of conifer trees per acre; this is calculated by multiplying the number of trees in the sample by 8.1 to expand the number to the number per acre.


Field CONF_BA_AC
* Alias CONF_BA_AC
* Data type Double
* Width 8
* Precision 15
* Scale 1
Field description
Basal area (BA) (square feet of trees) per acre of conifer trees. This is calculated by summing the total cross-sectional area of the trees in the plot (square feet diameter) by 8.1 to expand the number to an acre.


Field NUM_SNAGS
* Alias NUM_SNAGS
* Data type Double
* Width 8
* Precision 14
* Scale 0
Field description
Number of snags counted in the 0.05-ha circular plot.


Field AVE_DBH_SN
* Alias AVE_DBH_SN
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average diameter at breast height (4.5 ft) of the snags within the plot.


Field QMD_SNAGS
* Alias QMD_SNAGS
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Average quadratic diameter at breast height (4.5 ft) of the snags within the plot. Quadratic diameter is calculated by dividing the (1) square root of the sum of the squared diameters of the sample trees by (2) the total number of trees in the sample.


Field SNAGS_AC
* Alias SNAGS_AC
* Data type Double
* Width 8
* Precision 13
* Scale 1
Field description
The total number of snags per acre; this is calculated by multiplying the number of snags in the sample by 8.1 to expand the number to the number per acre.


Field SNAG_BA_AC
* Alias SNAG_BA_AC
* Data type Double
* Width 8
* Precision 15
* Scale 1
Field description
Basal area (BA) (square feet of snags) per acre of the snags. This is calculated by summing the total cross-sectional area of the snags in the plot (square feet diameter) by 8.1 to expand the number to an acre.


Field Shape
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.






Overview Description
Entity and Attribute Overview
The data contained in the extended table describes tree sizes, densities, and number by conifers, hardwoods, snags. It also provides summarized data on Quadratic Mean Densities and basal area.




Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2014-04-28


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata


Created in ArcGIS for the item 2014-03-0616:01:28
Last modified in ArcGIS for the item 2014-04-2810:05:46


Automatic updates
Have been performed Yes
Last update 2014-04-2810:05:46


Metadata Contacts

Metadata contact
Individual's name Gordon Gould
Organization's name Biogeographic Data Branch, California Department of Fish and Game
Contact's role point of contact


Contact information
Phone
Voice 916 445 5006

Address
Type postal
Delivery point 1416 Ninth St., 12th floor
City Sacramento
Administrative area CA
Postal code 95814
e-mail address ggould@dfg.ca.gov



Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc